Nafisa Hasan Tuli
Inventory and Operations Writer, Devmerx
Nafisa Hasan Tuli writes about Shopify inventory operations for Devmerx, the studio behind StockCue: Inventory Forecast.
39 articles on the Devmerx blog
Articles by Nafisa Hasan Tuli
Shopify Supplier Management: Complete Guide
Your forecast is only as good as the supplier behind it. The records to keep, the terms that matter, and the review that stops a bad supplier hiding.
Inventory Carrying Cost: What Stock Really Costs
Capital, storage, service and risk: four separate costs behind one percentage. How to build the rate from your own numbers instead of borrowing someone else's.
Forecasting Across Multiple Locations
Split your sales history by location and every forecast gets noisier. When to forecast the total and split it, and when a location earns its own forecast.
Holiday Inventory Planning for Shopify
Holiday planning is a calendar problem before it is a maths problem. Working backwards from peak week to the date the purchase order has to leave.
Black Friday Inventory Planning
BFCM is one weekend with no chance to restock halfway through. How to size the buy, protect the hero SKUs, and plan for both a sell-out and a miss.
Inventory Optimization: Complete Guide
Optimization means choosing which of three competing objectives to give ground on. The framework, the levers that move each, and how to measure it.
Prediko Alternatives for Shopify
Prediko alternatives compared for smaller Shopify catalogs, including the case for keeping Prediko if you actually use the planning depth you pay for.
Products With Intermittent Demand
Average daily sales means almost nothing for a product that sells twice a month. What to use instead, and when to stop stocking the SKU at all.
Accounting for Outliers in Forecasting
A bulk order, a viral week, a data-entry slip. How to spot the sales that shouldn't feed your forecast, and the risk of cleaning too much out.
Inventory Planning for High-SKU Stores
You can't review 1,000 SKUs weekly. The exception-based buying routine that scales, what to automate first, and what should stay a human decision.
Too Much Inventory, Still Out of Best Sellers
Too much stock and not enough of the right stock is one problem, not two. Where the cash went, and how to rebalance without spending any more of it.
10 Signs You Need Forecasting Software
Ten checkable signs, grouped by where they show up: your sales data, your buying process, and your cash position. Plus what none of them prove alone.
How to Reduce Cash Tied Up in Inventory
Every unit on the shelf is cash already spent. How to measure how much, free some of it up, and change the ordering habits that put it there.
How to Prevent Inventory Discrepancies
A diagnostic guide to why Shopify stock counts drift (unreserved drafts, refund restocking, receiving mix-ups, and shrinkage), with the habits that stop each one recurring.
What Is Dead Stock? A Shopify Merchant's Guide
Dead stock isn't a slow month, it's a SKU that has stopped selling. The definition, and where it differs from overstock.
Shopify Inventory Reports Explained
A screen-by-screen walkthrough of Shopify's nine native inventory reports, the one with a real plan restriction, and where they genuinely fall short.
Shopify Inventory Adjustment: How & When
Shopify's native adjustment reasons, how to make a manual correction in the admin, when to adjust instead of running a full count, and the audit trail it leaves.
Stockout vs. Backorder
Out of stock and taking orders anyway are different situations with different consequences. Which one you're in, and what to do.
How to Manage Late Purchase Orders
Shopify has no field for an expected date, so nothing flags an overdue PO. What to do, and how to feed the delay forward.
How to Manage Partially Received Purchase Orders
A shipment lands short. How to record what arrived, decide what happens to the rest, and keep your numbers honest.
How to Track Purchase Orders in Shopify
Draft, Ordered, and then a separate transfer that does the receiving: how Shopify's PO model actually works.
What Should a Purchase Order Include?
A field-by-field anatomy of a purchase order, and the optional fields worth adding once you run more than a few.
Forecasting Inventory for New Products
No sales history doesn't mean no plan. Analogous products, early signals, and a first order sized to be corrected rather than to be right.
Safety Stock: Complete Guide
The buffer that absorbs a demand spike or a late shipment: both formulas worked, and how it differs from your reorder point.
How to Automate Reorder Recommendations
The whole pipeline, from a crossed reorder point to a drafted purchase order: what to automate and what to keep human.
How to Prioritize Products for Reordering
Not every SKU deserves equal attention. ABC and XYZ analysis, and how to combine them into a reorder order of operations.
How Often Should You Reorder Inventory?
Continuous review versus a fixed schedule, and how catalogue size and supplier terms decide which one suits you.
Reorder Point vs. Reorder Quantity
Two numbers doing two different jobs, compared side by side on one SKU: when to order, and how much.
Inventory Forecasting Methods for Shopify
Smooth, erratic, intermittent, lumpy. Which method suits a SKU depends on how it actually sells, not on which is most sophisticated.
Forecast Demand Using Your Shopify Sales Data
Your store already holds the history a forecast needs. How to get it out, what to strip before you use it, and how to turn it into a daily rate.
Shopify ADA Compliance Checklist (2026)
A practical, section-by-section checklist for Shopify ADA compliance: images, contrast, keyboard navigation, forms, and the third-party apps most merchants miss.
Do Accessibility Overlay Widgets Actually Work?
Accessibility overlay widgets promise instant ADA compliance. Here's why lawsuits keep happening to sites that installed one anyway, and what actually reduces risk.
Shopify Custom Theme Development Cost
From a Theme Store purchase to a fully bespoke build: the four tiers of Shopify theme development, what drives cost, and how to pick the right one.
Why Is My WooCommerce Site So Slow?
A step-by-step diagnostic for a slow WooCommerce store: hosting, plugins, database bloat, caching, and the checkout-specific issues most guides miss.
Stocky Has Shut Down: Export Your Data in the Read-Only Window
Stocky shut down on August 31, 2026, but Shopify's read-only window is still open. Exactly what you can still pull out: suppliers, assignments, open POs, stock counts, sales history.
The Best Stocky Alternatives for Shopify in 2026: An Honest Comparison
Stocky shut down on August 31, 2026. An honest comparison of alternatives (StockCue, Sensible Forecasting, Prediko, mid-market planners, and spreadsheets), pricing and who each is for.
How to Calculate Reorder Points (The Formula Every Small Shopify Store Needs)
The reorder point formula in plain English, with a worked example: average daily sales × lead time + safety stock. Stop guessing when to reorder.
Generative Engine Optimization for Shopify: How to Appear in AI Search Results
Generative Engine Optimization (GEO) is the new frontier for Shopify product discovery. Learn how to appear in ChatGPT, Perplexity, and Gemini recommendations.
Google AI Overviews for Ecommerce: How to Appear and What to Expect
Google AI Overviews are reshaping ecommerce search. Discover how to appear in AI-generated results, improve E-E-A-T signals, and track your AI brand presence.
